This study was conducted to suggest the cause analysis and mitigation measures of foaming generated in the effluent of wastewater treatment plant. The foam generated in the outlet connected with the tidal river system was identified as structural problems. And the main cause of foaming was air entrainment by an impinging jet and the internal accumulation by the diffusion barrier. In consideration of these conditions, it present the effective ways such as micro-screen and submerged outlet, to mitigate the foaming generated in the water channel and outlet end.

• 신재기(한국수자원공사 낙동강통합물관리센터) | Shin Jae-Ki Corresponding author
• 조영수(한국수자원공사 낙동강통합물관리센터) | Youngsoo Cho
• 김영성(한국수자원공사 K-water 연구원) | Youngsung Kim
• 황순진(건국대학교 보건환경과학과) | Soon-Jin Hwang